6.5″ x 30″ Manhole Frame and Cover (1012A)

The 6.5″ x 30″ Manhole Frame and Cover (1012A) is a municipal-grade cast iron access casting designed for underground utility structures, sanitary sewer systems, stormwater networks, wastewater facilities, and infrastructure projects requiring a larger access opening than standard 24-inch assemblies. Featuring a 30-inch clear opening, 41-inch outside frame diameter, and a deep 6.5-inch frame profile, the 1012A provides increased accessibility for maintenance personnel, inspection equipment, pumps, valves, and utility components.

Engineered from ASTM A48 Class 30 gray iron, this casting is designed to withstand demanding service conditions while providing safe and reliable access to buried infrastructure. The larger opening allows improved worker mobility and equipment handling while maintaining the structural performance expected in roadway, commercial, and municipal environments.

Product Features

• 30″ clear access opening
• Deep 6.5″ frame section
• ASTM A48 Class 30 gray cast iron
• Precision-machined bearing surfaces
• Stable non-rocking cover design
• Suitable for utility and municipal installations
• Larger opening for improved accessibility
• Available with utility-specific markings
• Optional asphaltic protective coating
• Custom lettering available
• Compatible with precast and cast-in-place structures
• Designed for long-term infrastructure service

Common Applications

The 1012A Manhole Frame and Cover is frequently specified for:

• Sanitary Sewer Systems
• Storm Drain Infrastructure
• Utility Vaults
• Wastewater Treatment Facilities
• Pump Stations
• Lift Stations
• Water Distribution Systems
• Electrical Vaults
• Telecommunications Chambers
• Transportation Infrastructure
• Industrial Utility Corridors
• Municipal Public Works Projects

The larger 30-inch opening is particularly beneficial where personnel access, equipment removal, or frequent maintenance activities are anticipated.

Technical Specifications

Dimensional Information

The engineering drawing for the 1012A casting includes the following dimensions:

These dimensions provide a larger access opening while maintaining sufficient bearing area for structural stability and long-term performance.

Advantages of a 30-Inch Opening

Many municipalities and utility owners specify larger diameter access castings when maintenance requirements exceed those of standard 24-inch structures.

Improved Personnel Access

The increased opening size allows workers additional clearance during inspections, confined-space entry procedures, and repair operations.

Easier Equipment Handling

Larger pumps, valves, flow meters, monitoring equipment, and maintenance tools can be removed and installed more efficiently.

Reduced Maintenance Challenges

The expanded opening improves visibility and working space, helping maintenance crews complete inspections and repairs more effectively.

Greater Design Flexibility

A 30-inch opening provides infrastructure owners with additional flexibility for future upgrades and modifications.

Material Characteristics

Gray cast iron continues to be one of the most widely specified materials for underground utility access structures because of its durability, load-bearing capability, and long-term performance under demanding field conditions.

Available Cover Markings

Amercast can supply cast-in utility identification markings including:

• SANITARY SEWER
• STORM
• WATER
• DRAIN
• ELECTRIC
• TELEPHONE
• COMMUNICATIONS
• FIBER OPTIC
• RECLAIMED WATER
• GAS
• MUNICIPAL SEAL
• CUSTOM LETTERING

Custom logos and utility branding are available upon request.

Custom Manufacturing Capabilities

Amercast routinely manufactures custom municipal castings and specialty access products including:

• Custom Diameter Castings
• Utility-Specific Covers
• Locking Assemblies
• Watertight Configurations
• Bolt-Down Covers
• Hinged Covers
• Ductile Iron Options
• Custom Logos
• Municipality-Specific Castings
• Project-Specific Utility Markings

Our engineering team can manufacture products to city, county, DOT, utility authority, and consulting engineer specifications.

Related Products

• Manhole Frames and Covers
• 6″ x 24″ Heavy Duty Manhole Frame and Cover
• 6″ x 24″ Locking Watertight Manhole Frame and Cover
• Adjustable Manhole Risers
• Manhole Risers and Extension Rings
• Catch Basin Grates
• Municipal Castings
• Septic Covers

Industry Resource

For additional information regarding utility access structures, wastewater infrastructure, and collection system maintenance practices:

Water Environment Federation (WEF)

WEF provides engineering resources, infrastructure guidance, and technical information for water and wastewater professionals.

Why Choose Amercast?

Amercast supplies cast iron access castings for municipalities, utility authorities, engineering firms, contractors, and infrastructure owners throughout North America. Our products are designed to provide dependable access, structural reliability, and long-term performance in demanding utility environments.

From standard manhole covers to custom-engineered municipal castings, Amercast delivers quality products tailored to project requirements.

Request a Quote

Need pricing, engineering support, custom markings, shop drawings, or product specifications?

Contact Amercast today to request a quote for the 6.5″ x 30″ Manhole Frame and Cover (1012A). Our team can assist with municipal infrastructure, utility systems, transportation projects, wastewater facilities, and custom casting requirements throughout North America.